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Core #1 Part B

Pesticide Names, Groups and Formulations

How are Pesticides most commonly classified? 1. Target Pest 2. Inherent Properties (how the work) 3. Affect on Pest 4. Chemical Family/resistance management/mode of action groups
What is the target pest of an acaricide? Spiders and Mites
What is the target pest of an algicide? Algae
What is the target pest of an avicide? Birds
What is the target pest of a bactericide? Bacteria
What is the target pest of a fungicide? Fungi
What is the target pest of a herbicide? Weeds
What is the target pest of an insecticide? Insects
What is the target pest of a miticide? mites
What is the target pest of a molluscicide? slugs and snails
What is the target pest of a nematicide? nematodes and roundworms
What is the target pest of a piscicide? fish
What is the target pest of a rodenticide? mice and rats
T/F; Common sub-groupings within the grouping "Inherent Properties include; route of entry, selectivity and residual effectiveness. True
Define "Systemic Pesticides"? Control their targets by entering and moving through the organism.
T/F; Weeds receiving only a partial spray coverage cannot be killed by systemic herbicides. False
T/F; Insects may be killed as they feed on the juices which carry a systemic insecticide through a plant. True
Define " Contact Pesticides"? Control targets by direct contact.
T/F; A contact insecticide destroys insects when they are sprayed directly on the insect but will not destroy insects that crawl across surfaces sprayed with the insecticide. False
Define "Selective Pesticides"? A pesticide that affects the target but no other organisms.
Define "Non-selective Pesticides"? Affects the target pest as well as many other pests.
T/F; Chlorpyrifos is an example of a non-selective pesticide. True, It kills most insects,birds wildlife and is extremely toxic to aquatic organisms.
What is the difference between a residual and non-residual pesticide? Residual pesticides affect organisms for a long time after application (eg; wood preservatives) while non-residual pesticides only affect organisms at the time of application (eg. insecticidal and herbicidal soaps only work when wet)
T/F; Groupings based on how pesticides affect pests include; Attractants, Defoliants, Desicants, Feeding stimulants and suffocants True
What is the significance of grouping pesticides by "Chemical Family/Resistance Management/Modes of Action"? Chemical families are similar in; poisoning symptoms, persistence within the environment, and the way they influence pest resistance.
What chemical family does chlorpyrifos belong to? Organophosphates
What chemical family does 2,4-D belong to? Phenoxys
What chemical family does carbaryl belong to? Carbamates
What chemical family does atrazine belong to? Triazines


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